| PartNumber | MCF51EM128CLL | MCF51EM256CLK | MCF51EM128CLK |
| Description | 32-bit Microcontrollers - MCU 16 Bit256K Flash CFV1 | 32-bit Microcontrollers - MCU 16 Bit256K Flash CFV1 | 32-bit Microcontrollers - MCU 16 Bit256K Flash CFV1 |
| Manufacturer | NXP | NXP | NXP |
| Product Category | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | LQFP-100 | LQFP-80 | LQFP-80 |
| Series | MCF51CN128 | MCF51EM | MCF51CN128 |
| Core | ColdFire V1 | ColdFire V1 | ColdFire V1 |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 50 MHz | 50.33 MHz | 50 MHz |
| Program Memory Size | 128 kB | 256 kB | 128 kB |
| Data RAM Size | 16 kB | 16 kB | 16 kB |
| Operating Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tray | Tray | Tray |
| Program Memory Type | Flash | Flash | Flash |
| Brand | NXP / Freescale | NXP / Freescale | NXP / Freescale |
| Data RAM Type | SRAM | RAM | SRAM |
| Interface Type | LIN, RS-232 | I2C, SPI, UART | LIN, RS-232 |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of Timers/Counters | 3 Timer | 3 Timer | 3 Timer |
| Processor Series | MCF51EM | MCF51EM | MCF51EM |
| Product Type | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU |
| Factory Pack Quantity | 450 | 450 | 450 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Tradename | ColdFire | ColdFire | ColdFire |
| Part # Aliases | 935319586557 | 935323013557 | 935310289557 |
| Unit Weight | 0.024170 oz | 0.022489 oz | 0.022489 oz |
| ADC Resolution | - | 16 bit | - |
| Number of I/Os | - | 40 I/O | - |
| Product | - | MCU | - |
| Analog Supply Voltage | - | 3.6 V | - |
| Number of ADC Channels | - | 14 Channel | - |
| Supply Voltage Max | - | 3.6 V | - |
| Supply Voltage Min | - | 1.8 V | - |
| Watchdog Timers | - | Watchdog Timer | - |